<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org" lang="ch" >
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
登录页
<form action="/userLogin" method="post">
    username: <input name="username" type="text">
    password: <input name="password" type="text">
    <input type="submit" value="login">
</form>

</body>
</html>